Abstract The standard Λ Cold Dark Matter (ΛCDM) cosmological model provides a good
description of a wide range of astrophysical and cosmological data. However, there are a …

We review numerous arguments for primordial black holes (PBHs) based on observational
evidence from a variety of lensing, dynamical, accretion and gravitational-wave effects. This …

Pulsar timing arrays (PTAs) have reported evidence for a stochastic gravitational wave (GW)
background at nanohertz frequencies, possibly originating in the early Universe. We show …

The recently released data by pulsar timing array (PTA) collaborations present strong
evidence for a stochastic signal consistent with a gravitational-wave background. Assuming …

The existence of nonzero neutrino masses points to the likely existence of multiple Standard
Model neutral fermions. When such states are heavy enough that they cannot be produced …

The most conservative interpretation of the nHz stochastic gravitational wave background
(SGWB) discovered by NANOGrav and other pulsar timing array (PTA) collaborations is …

The recent result of the Dark Energy Spectroscopic Instrument (DESI) in combination with
other cosmological data shows evidence of the evolving dark energy parametrized by the w …

The W-boson mass, which was recently measured at Fermilab with an unprecedented
precision, suggests the presence of new multiplets beyond the standard model (SM). One of …

Cosmological gravitational particle production (CGPP) is the creation of particles in an
expanding universe due solely to their gravitational interaction. These particles can play an …

We investigate the implications of the baryon acoustic oscillations measurement released by
the Dark Energy Spectroscopic Instrument for interacting dark energy (IDE) models …